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#PHP JSON DECODE ALL AND STRINGS HOW TO#
#PHP JSON DECODE ALL AND STRINGS CODE#

Boolean values (“true” or “false”), like the Admin variable.

Strings, like “Alex” (the Name variable).

While the keys are always strings, the values can be any of the following types: The values are the actual values of the variables identified by the keys. The keys are always strings and are always enclosed in double quotes. In the above example, the keys are “Name”, “Age”, “Admin”, “Contact” and “Tags”. More precisely, a JSON object contains a list of key => value pairs, separated by a colon.

#PHP JSON DECODE ALL AND STRINGS CODE#

Then we are even printing json_last_error() and json_last_error_msg() functions which will print about the error information such as “4 syntax error” that is related to the PHP code written in the above example with the screenshot shown above and if we do not want to print any of error messages using the error functions then the output would be “null” that means it will not print anything in the converted objects of PHP as JSON string or data itself is invalid and this can be seen in the below screenshot.As you can see, a JSON object is a container for other variables. In the above program, we can see in the variable “json_string” we have passed an invalid JSON data and we are trying to access the object in the above JSON string to PHP object when it is converted using json_decode() function. In the below, we will see passing an invalid JSON string to the function and try printing the errors also. In the above program, we can see when we have declared a json_string and access any of element in array we use array in any programming language similarly, we write it with echo function and in the above code we have to observe that we have not passed asso_arr parameter in the json_decode() function so to access the element we have to write “echo $x-> Companyname ” and if we set the second parameter to “true” then we have to write “echo $x ”.

#PHP JSON DECODE ALL AND STRINGS HOW TO#

In the below program we will see how to access an element of an array using the echo function. Now we will see an example below having an invalid JSON format and passing this string to the json_decode() function and what error and output it will give and we will also how to print those array which can be accessed using the “echo” function in the below section. Suppose we have not set anything or not passed asso_arr parameter such as “var_dump(json_decode($json_string)) ” then this value would give us access to the property of the object in an array as shown in the below screenshot.

It has array(5) which means it has 5 elements in an array. In the above code, we can are declaring a JSON variable as json_string in which we are storing the JSON format data to be converted and then this variable is passed as a parameter to json_decode() function with asso_arr set as “true” that gives it in an array format as shown in the above screenshot.

In the above program, we can see when we are writing PHP code in HTML structure we start with “”.

Examples of PHP json_decodeįollowing are the examples are given below: Example #1 Now let us see simple example which uses json_decode() of PHP in a HTML structure. This json_decode() function of PHP takes JSON encoded string as input and returns the value that is decoded to PHP objects which of PHP data types and if the decoding is not possible then this function returns null instead of PHP objects.

Opt: this parameter is used to specify the bitmask of JSON_OBJECT_AS_ARRAY, JSON_BIGINT_AS_STRING,JSON_INVALID_UTF8_SUBSTITUTE, JSON_THROW_ON_ERROR and this also an optional parameter.

Recur_depth: this parameter is used to specify the depth of the recursion and this is also an optional parameter with 512 as a default value.

This parameter is optional and has false as the default value.

Asso_arr: this parameter is used to specify the Boolean values that can return an associated array if the value is set to true, else returns an object if it is set to false.Json_string: this parameter is compulsory to specify the JSON encoded string for converting it into PHP objects Json_decode(json_string, asso_arr, recur_depth, opt )